Front Indicators not Working

Is it a blown fuse? I tow horse floats too behind 2 different Landcruisers and had one recently that blew the indicator fuses on our 80 series due to faulty wiring on the float.

Trailer fuse most probably and inline fuseholder on the battery positive terminal

Check under the bonnet....from memory there's a fuse for the trailer plug connection on the passenger side (I think it is, but can't recall it's location under the bonnet exactly) there somewhere that may relate to your problem.

If the bull Bar indicators work and they source Power from the original indicators which are not working, then something is wrong up front. Perhaps they are wired separately. A check of wires will determine that issue. Who knows what Power source and wiring is had been performed for the trailer/float.
If the vehicle rear indicators work and not trailer, then they too may be wired into different circuits or the trailer plug is sus.

Cant find a blown fuse, just the Trailer indicators (which use the Toyota Loom) and the front main indicators. As I said, front BullBar, side and rear indicators all work.

Mark
You said there is a toyota trailor loom fitted, if it goes to the engine bay there are two relays which use the same fuse as supply. The relays are triggered by the front indicators and put power to trailor plug and front indicator per side.There should be a inline fuse tapped from the battery or a blown fuse called trailor in fuse box's.
The reason this is done is that you have lights in bull bar which are added and when the trailor is plugged in another extra light which over loads the system. Hence the main front and trailor are removed from circuit and powered by the relalys.
The trailor loom at the engine bay is plug and play with original loom and should be on the mud guard.
After finding fuse get horse float checked as short most likely there.

Murray

A mate of mine who is a great motor mechanic who sometimes works in outback locations for fun, often says that when weird things like that happens, uses the acronym CATECheck All The Earths

When fixing electrical problems such as lighting, start with the simple things first.

In this case, you'd check that both indicator globes are intact and working, and then go on to check all earth connections.
It's not the first time two globes have blown almost simultaneously.

I've just fixed a problem where I had no reversing lights on one of my Hiluxes - and as it had recently had a new clutch, I was thinking along the lines of blaming the clutch installer for not reconnecting the reversing light wiring when he moved the gearbox back, to install the clutch - and I was getting ready to scramble about, underneath the ute, for half an hour.

But a mate stopped me in my tracks when he said, "Have you checked the globes first?"
I was arguing that two globes couldn't have blown virtually together - but he was right!
Saved myself a heap of time by not having to track down and follow wiring and connectors.

Cheers, Ron.

RUMPIG is on the money. The fuse is in a hidden fuse holder behind the main battery where people mount their second battery. Sometimes the small fuse holder is pushed into the mudguard if you have a second battery or pre fuel filter added.
Search and you shall find!!